`mail.sinet.nl`

DNSSEC	⚠️ Not signed
A	2a01:239:43a:2d00::1^{🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de}
A	217.154.225.166^{🇬🇧 IONOS-AS217.154.224.0/22 IONOS SE}
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}

`sinet.nl`

	DNSSEC	🔒 Signed (DS record present)
	A	2a01:239:43a:2d00::1^{🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de}
	A	217.154.225.166^{🇬🇧 IONOS-AS217.154.224.0/22 IONOS SE}
	NS	`shades19.rzone.de` ⭐
	NS	`docks12.rzone.de`
	MX	`mail.sinet.nl` ⭐
	MX	`relay.rzone.de`⁽¹⁰⁰⁾
	SOA	`shades19.rzone.de`hostmaster@strato-rz.de 2025-10-30 #38

MX for

sinet.nl

Same first word

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mail.dating

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mail.nr

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DNS History

4 records (3 active, 1 former)

●MXsmtp.rzone.de2026-04-02 → 2026-07-19 · 2 obs

● 2026-04-02 09:28:02
● 2026-07-19 11:17:48

○A185.13.227.1612015-05-06 → 2016-12-14 · 4 obs

● 2015-05-06 22:00:18
● 2016-12-14 10:00:02
○ 2026-04-02 09:28:02
○ 2026-07-19 11:17:48

●A217.154.225.1662026-04-02 → 2026-07-19 · 3 obs

○ 2016-12-14 10:00:02
● 2026-04-02 09:28:02
● 2026-07-19 11:17:48

●A2a01:239:43a:2d00::12026-04-02 → 2026-07-19 · 3 obs

○ 2016-12-14 10:00:02
● 2026-04-02 09:28:02
● 2026-07-19 11:17:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
sinet.nl	docks12.rzone.de, shades19.rzone.de	-

✅ Authoritative Response

Server:217.160.80.139

NS records: docks12.rzone.de, shades19.rzone.de

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 441ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.154.225.166`
AAAA	1	`2a01:239:43a:2d00::1`
MX	1	`smtp.rzone.de (pri: 5)`

Analysis

Mail Server Role

The mail server mail.sinet.nl processes email for sinet.nl.

As mail servers, relay.rzone.de and mail.sinet.nl are regularly found together.

IP Addresses

mail.sinet.nl points to the IP addresses 217.154.225.166 and 2a01:239:43a:2d00::1

sinet.nl, for instance, is one of the other host names sharing IP numbers with mail.sinet.nl.

Mail Servers

The sole mail server for mail.sinet.nl is smtp.rzone.de.

Among the domains sharing a mail server setup with mail.sinet.nl are rutadestroy.com, schluesseldienst-hamburg-groch.de, humstee.nl and two others.

smtp.rzone.de directs to two IP numbers, 81.169.145.98 and 2a01:238:20a:202:50f0::2097.

mail.sinet.nl - robtex.com

mail.sinet.nl

sinet.nl